Κανονική προβολή Προβολή MARC Προβολή ISBD

Water quality in the Allegheny and Monongahela River Basins : Pennsylvania, West Virginia, New York, and Maryland, 1996-98 / by Robert M. Anderson...[et al.]. - [Reston, Virginia]: [U. S. Geological Survey], [U. S. Department of the Interior] [2000]. - iv, 32 p. : ill., maps, tables ; 28 cm. - 1202 .

Includes bibliographical references (p. 25-26).

ISBN: 0607954116

Subjects--Topical Terms:
Water quality--Monongahela River Watershed (West Virginia and Pennsylvania)
Water quality--Allegheny River Watershed (Pennsylvania and New York)

Dewey Class. No.: 363.73942097486